hrtime

(PHP 7 >= 7.3.0)

hrtime — Get the system's high resolution time

Description

hrtime ([ bool $get_as_number = false ] ) : mixed

Returns the system's high resolution time, counted from an arbitrary point in time. The delivered timestamp is monotonic and can not be adjusted.

Parameters

get_as_number

Whether the high resolution time should be returned as array or number.

Return Values

Returns an array of integers in the form [seconds, nanoseconds], if the parameter get_as_number is false. Otherwise the nanoseconds are returned as int (64bit platforms) or float (32bit platforms).

Examples

Example #1 hrtime() usage

<?php
echo hrtime(true), PHP_EOL;
print_r(hrtime());
?>

The above example will output something similar to:

10444739687370679
Array
(
    [0] => 10444739
    [1] => 687464812
)

See Also

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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.hrtime.php